Arch for locomotive-furnaces.



GK B. NREa ARCH FOR LGGGMGTIVE mm1/masx PPLXATION FILED JULYI, 1908. QQ fak-,49 h Patented NGV. 31908.

, B, MOORE. LUGOMGTIVE FURNAGES, APPLICATION ARCH FO FILED JULY l0, 1908.

. a eme@ Nm'. l?, i908.

B, MOURB ARCH FOR. LOGOMOTIVE FUBNAUES APPLICATION FILED JULYIO, 1908,

Patente Nov. l?, 1908.

4 SHEETS-SHEET 3,

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C. B. MGQRE. ARGE FOR LOGOMOTIVB FURNAGES. APPLGATIQN FILED JULY 10, 1908.

@@ymif, Patented Nov. i7, 1908,

CHARLES BREARLEY MOORE, OF EVANSTON, ILLINOIS.

ARCH FR.

'LoooMorivn-runnacns.

Original applications filed May 20, 1907, Serial Nos.

specification of Letters raient.

Patented Nov. 17', 1908.

374,721 and 374,722. Divided and this application filed July l0, 1908. Serial No. l42,979.

To all 'whom it may concern:

Be. it known that. l, CHARLES BREARLEY MOORE, a citizen of the United States,`and resident of Evanston, Cook county, illinois,

have invented certain new, useful, and luis proved Arches for Loeomotive-Furnaces, of

which the following is a full, clear, and ex;

act description, such as will enable others skilled in the art to which it appertains to make and use the'same.

This is a divisional application, the subject matter hereof` having been previously disclosed in my pending applications, filed May 20, 1907, Serial Numbers 374,721, and 374,722.

, My invention relates to improvements in which rest againstthe respective sides of the tire/box in the spaces between the arch body and said sides; all as, and for the purposes, hereinafter specified and particularly pointed out in the appended claims.

My invention will be more readily understood by reference to the accompanying drawings forming part of thisspeeilication, and in which,

Figure l, is a vertical section of a locomotive lire boxof the i* wide type, containing a refractory front arch embodying my inventioi. the 'section being on the irregular line X-X'of F ig. 2` Fig. 2, is a horizontal section on the line Y-Y of Fig. l. Fig. 3, isa vertical section .on the lines Z-Z of Figs. l and 2. Fig. e, is asectional detail, subntially on the line V-V of Fig. l. Fig. 5, is a vertical section of a llocomotive fire box of the narrow type, containing an arch of my invention, the section being on the line lV--V of Fig. 6. Fig. 6, is a horital section on the line UJ-U of Fig. '5'.

ff?, is a vertical section on the line T---T of Figs. 5 and 6. Fig. 8, is a sectional detail on the line S--S of Fig. Y

As shown in the drawings the walls of a locomotive tire box are constituted by the flue sheet the side sheets 3, 3; the rear sheet 4 and the crown sheet (5' represents the grate. The lues '7, extend forward from the upper part of the liuc sheet 2. rlhe tire box is inclosed by the boiler shell and forms therewith the usual front, side and rear water legs 8, 8 and 8. The arch tubes 9 occupy inclined positions and extend from the lower part of the Hue sheet 2, to the upper part of the rear sheet, L The water from the front water leg 8 flows and prevents the burning out of the tubes.

quire arch tubes of ditl'erent forms and inclinations, also different numbers thereof; but they are essentially the same, and perform the same functions, in all cases. Locomotive lire boxes are of two principal types; the

boxes of the wide type, shown in Figs. l to 4l, are characterized by side sheets which are substantially vertical or which flare outi'ardly at the bottom, the grate, generally, being of practically the same width as the top of the tire box. Narrow fire boxes as shown in Figs. 5 to 7, are characterized by side sheets which curve or fiarelinwardly Notwithstanding the different shapes, to avoid confusion, I have iappliedthe same reference numerals to corresponding,T parts throughout the drawings of both the Wide and the narrow."7 re boxes.

l My invention `as herein represented is readily adaptableto all types and sizes of locomotive lire boxes and overcomes the dilurged against the use of, arch tubes and re.-

fractory' arches in locomotives, including suchY as are common'to all types as well as the objections and difficulties that are .individually characteristic thereof..

The arch rests upon the arch tubes and is composed of a number of refractory bricks; these take their dimensions from the fuel door of the i'e box, through which they must be Ipassed if'the removal of the grate too heavy for convenient handling and it through the tubes to the rear Water leg 8 l Fire boxes of diilerent types and sizes re' wide type and the narrow type. Fire.

is to be avoided.. In fact largerbrieks are` `at the bottom, their grates being narrower.

culties met with, and the objections hitherto ich" is desirable that they be as small as here indicated.

In carrying out the invention I employ as many arch tubes as may be'required to suit the dimensions of the bricks and the dimensions of4 the re box. In placing the arch tubes in th-fire rbox I space them to correspond with the width ofthe bricks and I leave, between the outermost tubes and the side sheets, snlicient space to permit easy access to the sidel sheets and the stay bolts, which require frequent inspection and repair.

.li/Iy novel arch comprises abody portion ,or arch proper A, and marginal, Wing or locking portions B. I generally make the body portion laterally co-extensive with the group of arch tubes and the effective Widths of the wing ybricks are greater than the spaces which remain between the edges of the arch proper and the side sheets. The body portion or arch proper A.,is made up of one or more footing bricks a', which rest upon the arch tubes and against the flue sheet, together with one or more longitudinalrows of body bricks a2, which lie on the f tubes and against the footing bricks. As

shown, I prefer that the footing bricks a shall b: of less width than the lower part of the lire box, but of lgreater-width than the upper part of the arch proper, to the end that the projecting ends of the footing bricks may serve to support the wings B. When the arch is thus constructed it is unnecessary to shape the lower ends of the wings or otherwise fit them against the flue sheet. Although the bodyof the arch is composed of a number of bricks and in the larger fire boxes may comprise several transverse and longitudinal rows thereof, it may be referred to as a single body, and in this sense may be described as having beveled longitudinal edges ai adjacent to respective side sheets. These beveled surfaces overlie the outermost' arch tubes and in forming the edges of the arch in this manner one purpose is to provide broadbearing surfaces for the wings, key or wedging members B. These bricks or locking members B are sub-` stantially wedge shaped in cross section, having relatively inclined edge surfaces or ends Z2 and 7a2, and they lit the wedge shaped openings or spaces defined by the side sheets of the furnace and the inclined edges a of the arch body. Y

As clearly shown by Figs. 2 and (l, the edges of the arch are parallel or substantially parallel, and the outer edges of thel wings B, are shaped to substantially conform to the side sheets of the furnace. For wide lire boxes I employ several wing or locking bricks b3 of uniform shape, having edges which are substantially parallel, whereas in adapting my invention to narrow lire boxes, I lind it. desirable to employ wing bricks L", which increase in width towards the top. The bricks b3 are interchangeable in the wide or straight sided lire boxes, the spaces on opposite sides of the arch being` of the same length and breadth. In like manfv`inclined edge of the arch body. The wing or key bricks break joints with the arch bricks and each wing brick thus engages the ends of at least-two bodybricks a2. The

body bricks are thus ede'ctually locked against v, relative transverse movement -on. the archfnj A 5.80, One of the objects'ofjm'y invention istoI tubes.

avoid the use of brick supporting lugs on .the

side sheets, and a further object is to pro-...

vide an arch which'will be self-tightened by f the vibration of the locomotive. 'The wing bricks B are of greater width than the spaces between the side sheets and the edges of the arch and when dropped into placel are supported by the side sheets without the aid of lugs thereon. They also tend tor wedge themselves tightly between the arch and the side sheets and therefore complete an arch structure which is very rigid and which fits so tightly between the side sheets that it cannot move laterally between them or on the tubes. When placed ina frepbox of slightly less than the expected width, the wing bricks occupy somewhat more inclined positions than shown in the drawings, and when a somewhat wider box is fitted the bricks B may drop substantially into the plane of the arch body, and yet securelywedge and lock the body bricks in place upon the tubes. To reduce the surface contact between the side sheets and the wing bricks B, I` preferably scallop or notch, z'. e.' point the edges or ends of the latter, and thus provide each thereof with one or more projections b". A further advantage of these projections is that being of small size they may be readily cut or chipped off to fit a warped or patched side sheet. l

As various modifications of my invention will readily suggest themselves to one skilled in the art I do not confine or limit the invention to the specific shapes, structures or arrangements of bricksherein shown and described.

I-Iaving thus described my invention, I claim as new and desire to secure byLetters Patent l. A locomotive boiler rebox or furnace, iri combination with a group of arch tubes of less width than said furnace, a refractory arch laterally co-extensive with said group of arch tubes and resting thereon, and wedge shaped bricks closingr the spaces between the edges of said arch and respective sides of the furnace, substantially described. A

2. A locomotive boiler furnace in combiwidth than said furnace, a refractory frontarch laterally co-eXtensive with said group of arch tubes and restingthereon, and side or marginal members also 'supported by the outer arch tubes and resting against and supported by the sides of the furnace, in #the spaces between the edges of said arch acting after the manner of wedges to securev the arch between the sides of the furnace, substantially as described.

with arch tubes iii/combination with a refractory brick arch supportedby said tubes and of less width than said furnace, and upwardly and outwardly inclined refractory bricks resting upon and supported by re- 'spective edges of the arch and sides of the furnace, as and for the purpose specified.

5. A locomotive boiler furnace and its fiue sheet in combination with a group of inclined arch tubes, of less width than said' furnace, a refractory arch'abutting thefhie sheet and comprising a suitably supported body portion laterally co-extensive with said group of arch tubes, and side portions o-f greater' width than the spaces between said body portiony and the sides of the furnace, said side portions leaning against and being supported by said sides, substantially as described.

6. A locomotive boiler furnace and its `due sheet in combination with agroup of arch tubes, of less width than said furnace, a refractory. arch abutting said iiue sheet and comprising a body portion, laterally co-exlensive with saidgroup of arch tubes and provided .with'upwardly and inward-ly in- 'Y y clinedfbeveled edges, and marginal bricks of greater width than the spaces between said body portion-and the sides of the furnace, resting upon and supported byfsaid beveled edges and said sides, substantially as described. l

,7.y A locomotiveboiler furnace, in combination with a group of arch tubes of less width than said furnace, an arch body formed of a plurality of refractory bricks, supported by said. tubes, said arch body be- ;iug substantially laterally cci-extensive with said group of arch tubes, and wedge shaped members arranged between` the edges of said arch and the sides of saidlfurnace, substan- L tially as described. l

8. Alocomotive furnace having arch tubes, in combination with a refractory arch resting thereon and comprising transverse footland the sides of thefurnace, substantially,

e. A locomotive boiler furnace equipped ing bricks abutting the end of the furnace and an upper portion composed of longitudinal rows of bricks rising from said footing bricks, said upper portion being of less width than the furnace, and bricks of greater width than the spaces between said body portion and the sides of the furnace also ris- I ing from said-footing bricks and adapted to close said spaces and wedgingly lock the 'whole in place upon the arch tubes, substantially as described.

9. A locomotive boiler furnace having inclined arch tubes, in combination with an arch arranged upon said tubes and compris ing a bodyl portion composed of longitudinal rows of bricks resting on said tubes and upwardly and outwardly inclined members, acting as wedges and locking said body portion upon said tubes and between the sides of the furnace, substantially as described.

10. A. locomotive boiler furnace, having arch tubes, in combination with a refractory arch resting upon said tubes and comprising a' body ,or central portion of less width than said furnace and wedgelike closures for the spaces between said central portion and the sides of the furnace, said closures comprising a plurality of bricks having a plurality of projections contacting the sides of the furnace, subsequently as described.

1l. A locomotive boiler furnace, in combination with a refractory front arch of less width than said furnace, arch tubes arranged beneath the edges of said arch, and wedge like closure members of greater width than the spaces between said arch and the sides of the furnace and supported therebetween, the inner edges of said closure members rest ing upon the edges of said arch, substantially above said arch tubes, substantially7 as de'- scribed.

A locomotive boiler furnacehaving inthe spaces between said central portion and the side sheets of the furnace, supported by said beveled edges and said side sheets, substantially as described.

13. A locomotive boiler furnace havingarch tubes, in combination with an arch formed of a,p'lurality of rows of refractory bricks, said arch being of less width thanv said furnace and supported by said arch tubes, wedge shaped bricks arranged between thc edges of said arch and the sides of the furnace, the joints between the several rows of bricks being substantially above respective arch tubes throughout, substantially and for the purpose specified.

- than the spaces between bricks,

14. 4A locomotive boiler furnace containing a group of arch tubes, 1n combination said lower bricks,- said `body. p ortion being of lesswidth than the furnace and supported by said arch tubes, said .group of arch tubes being laterally coextensive' with said body portion, and wedge bricksofgreater width saidf'body portion and the sides of the furnace,l said wedge bricks resting on said body. portion', sub'- stantially as described. y ,l .l

.15. A locomotive boilerv furnace having longitudinally disposed arch tubes'in` combination with an arch arranged therein and comprising a transverse row oflower front a body portion composed of longitudinal rows of bricksV resting on said lower bricks, and upwardly and outwardly inclined rows 'of key bricks between said bod as described.

16. A locomotive furnace in combination l with an upwardly and rearwardly inclined of the arch body lpoited thereby,

bricks resting against the edges of the arclir refractory arch suitably supported therein, wing bricks extending between the edges of said arch and adjacent sides of the furnace, said wing bricks serving to close the openings between tlie sides of the furnace and ex- Y erting-wedging force upon the arch, thereby preventing lateral movement 'of the arch in the furnace, substantially as described.

17. A locomotive boiler furnace in combination with an upwardly and rearwardly iiiclined refractory arch suitably supported therein, refractory bricks extending between the edges of the arch and respective sides of the furnace and wedgiiigly locking the arch against lateral motion, substantially as described.

1S. A locomotive boiler furnace containing ra group of arch tubes in combination witha p refractory arch body supported by said tubes and wing bricks extendingbetween the edges and thev adjacent sides of the furnace, said wing bricks exertingewedging force upon the arch preventing lateral movement thereof in the furnace, substantially as described.

19. A locomotive boiler furnace in coinbination with an arch occupying an inclinedl inprisingarch tubes and a plurality of refractory bricks supand refractory, wedging position therein and co and the sides of the furnace, substantially as described.

20. A locomotive boiler furnace, its flue sheets and side sheets, in combination with an arch occupying an inclined position irthe furnace and abutting said liuc sheet,

' tubes,

`of greater width than the y portion 'and the walls of the furnace, substantially upwardly and outwardly inclined body and thereby .said arch comprising a plurality of longitu- :dinally arranged arch tubes and a plurality of refractory bricks supported thereby and Wedge bricksoccupyingthe spaces between the edges of the arch vand said side sheets and' exerting wedging force thereon, substantially as described.

21. A- locomotive boiler furnace, its Hue sheet and side sheets in combination with a plurality of longitudinally arranged arch an arch body of. refractory bricks supported by and transversely movable upon said tubes and bricks spaces between the arch body andthe side sheets, exerting wedging force thereon to prevent movement of.

thearcli body described. .5

'22.'A locomotive boiler furnace, its flue sheet and side sheets, in lcombination with a plurality of longitudinally arranged inclined 'arch tubes, an arch body composed'of a plurality of refractory bricks supported by and laterally movable upon said tubes and a plurality of wedge bricks extending between the edges of the arch body and adjacent side sheets of the furnace, substantially as described. A

on said tubes, substantially as y 23. A locomotiveboiler furnace, itsflue in combination with a` sheet` and side sheets, group of longitudinally arranged arch tubes in said furnace, a refractory arch body of less widththan the furnace by said tubes and bricks of greater width than the spaces between the edges of the arch body and said side sheets, said bricks rest ing against said side ysheets. and closing said spaces, substantially as described.

24. A locomotive boiler furnace, in coinbination with a group of arch tubes of less width than said furnace a refractory arcli laterally co-extensive with said group of arch tubes and resting thereon, and locking bricks extending between and supported by the edges ofs'aid arch and the sides of the furnace, substantially as described.

25; A locomotive boilerl furnace, in combination with a group of arch tubes of less width than said furnace, a refractoryl front arch laterally (zo-extensive with said group of arch tubes and resting thereon, and wedge shapcdlocking bricks inclined against the 4sides of the furnaceand operating to wedge the arch between the Isides of the furnace, substantially as described.

Y 26. A locomotive boiler furnace having arch tubes, in combination with an arch of less width than said furnace and composed of a plurality of refractory bricks laid upon said arch tubes and upwardly and outwardly inclined bricks resting against the sides of the furnace 'two said bricksfsubstantialh7 as described.

27. A locomotive boiler furnace, containing a group of arch tubes, in combination composed of 'a pluralityy and/each engaging the ends of` and supported .described wide type having substantially straight vertical side sheets, in combina-tion wit a group of inclined arch tubes in said furnace, a refractory arch body arranged upon and supported by said tubes and o less width than the furnace, a plurality of marginal bricks at each edge of the arch body and of greater width than the space between the arch body and the respective side sheets, said marginal bricks being in ondwise abutment and occupying inclined positions an being adapted to exert wedging force upon the'arch body to secure the saine between said side sheets, substantially as described.

In testimony whereof, l have hereunto set my hand, this 23rd day of June, 1908, 'in the presence of two subscribing witnesses.

` CHARLES BREARLEY MGORE.

Witnesses 1 LULU H. MARVEL, GHAnms Grimma:

with a refractory arch on said tubes and of l less width than the furnace, la plurality of locking bricks at each edgeof bricks resting against the edges of the arch and being inclined against furnace in such relation .as by the vibration thereof, substantially as .30. A; locomotive boiler furnace of the HAWLEY. 

